solaris 24PC 30PC - Heatline

solaris 24PC, 30PC
15. Onboard Adjustments
Potentiometer
adjustment cover
15.1 The boiler incorporates 4 potentiometers
and a bank of dip switches to allow adjustment
to its pre-set parameters. These are situated on
the rear of the control panel. (figure 19)
POTENTIOMETERS
DIP SWITCHES
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P7
P5
P2
P4
Figure 19
The potentiometers can easily be accessed by
removing the cover on the rear of control
panel (Figure 20). However, to reach the dip
switches, the control panel must be opened.
P7 – Ignition fan ramp
(default setting 4 0’clock)
P5 – Anti cycle timer adjustment
(default setting 6 0’clock)
P2 - Boiler range adjuster
(default setting 4 0’clock)
P4 – Maximum Fan sped adjustment
(default setting 4 0’clock)
15.2 Setting the maximum c/heating flow
temperature: The boiler is dispatched with a
maximum flow temperature factory set to 85°C.
Where a lower maximum temperature is required
such as in the case of under-floor heating,
the factory setting can be altered between a
maximum of 50°C and a minimum of 30ºC,
by setting dip switch '6' into ON position.
15.3 Setting the 45 second delay: The boiler is
factory set to exclude the delay of 45 seconds
before re-ignition between the closing of a hot
water faucet and CH start-up. This delay can be
set to 45 seconds by setting dip switch ‘3’
(figure 19) into the OFF position.
15.4 255 seconds delay setting: The boiler is
capable of up to 255 seconds ignition delay (anti
cycling time) before re-ignition following burner
shut down on the primary hydraulic water
reaching its set temperature. This delay can be
increased up to a maximum of 255 seconds by
turning potentiometer P5 (Figure 19) clockwise.
15.5 Pump working mode setting: The boiler has
a factory set to operate the pump for pre-purge and
post-purge times (45 sec.). This delay can be
excluded by fitting dipswitch ‘2’ (figure 19) into
ON position. However, this may then cause the
boiler over-heat thermostat to trip out.
15.6 The maximum and minimum heat output for
heating is adjusted via potentiometer P2 (figure
19) which changes the fan speed and thus the gas
rate. It is not necessary to make further
adjustments.
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